Compositions – Getters or gas or vapor generating materials for electric... – Metal or metal compound containing
Patent
1999-04-19
2000-08-29
Anthony, Joseph D.
Compositions
Getters or gas or vapor generating materials for electric...
Metal or metal compound containing
2521811, 252184, 423248, 502151, 502159, H01J 718, H01J 3520, B01J 3100, H01K 156, C01B 350
Patent
active
061103977
ABSTRACT:
A novel method for preparing a hydrogenation composition comprising organic polymer molecules having carbon--carbon double bonds, for removing hydrogen from the atmosphere within enclosed spaces and particularly from atmospheres within enclosed spaces that contain air, water vapor, oxygen, carbon dioxide or ammonia. The organic polymers molecules containing carbon--carbon double bonds throughout their structures, preferably polybutadiene, polyisoprene and derivatives thereof, intimately mixed with an insoluble noble metal catalyst composition. High molecular weight polymers may be added to the organic polymer/catalyst mixture in order to improve their high temperature performance. The hydrogenation composition is prepared by dispersing the polymers in a suitable solvent, forming thereby a solution suspension, flash-freezing droplets of the solution in a liquid cryogen, freeze-drying the frozen droplets to remove frozen solvent incorporated in the droplets, and recovering the dried powder thus formed.
REFERENCES:
patent: 3896042 (1975-07-01), Anderson et al.
patent: 3963826 (1976-06-01), Anderson et al.
patent: 4405487 (1983-09-01), Harrah et al.
patent: 4512721 (1985-04-01), Ayers et al.
patent: 4886048 (1989-12-01), Labaton
patent: 5624598 (1997-04-01), Shepodd et al.
patent: 5703378 (1997-12-01), Shepodd et al.
patent: 5998325 (1999-12-01), Shepodd
Fieser, L.F., Fieser, M., Textbook of Organic Chemistry, D.C. Heath & Co., 1950 pp. 66-69 and 89.
Kim, Y.S., Monforte, F.R., "Theoretically Dense (99.9%) Polycrystalline Alumina Prepared from Cryochemically Processed Powders," American Ceramic Society Bulletin, vol. 50, No. 6 Jun. 1971, p. 532-535.
Mirkovich, V.V., Wheat, T.A., "Use of Liquid Nitrogen In Spray Freezing," American Ceramic Society Bulletin, vol. 49, No. 8 Aug. 1970, p. 724-725.
Kelly, J., Hibbert, D.B., Tseung, A.C.C., "A critical examination of cryochemical method for the preparation of high surface area semiconducting powders," J. Mat. Sci., vol. 13, 1978 p. 1053-1060.
Even, Jr. William R.
Shepodd Timothy J.
Anthony Joseph D.
Evans Timothy P.
LandOfFree
Polymer formulations for gettering hydrogen does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polymer formulations for gettering hydrogen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer formulations for gettering hydrogen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1246336